二氧化氯催化氧化—曝气生物滤池法深度处理造纸废水

Advanced Treatment of Papermaking Wastewater by Chlorine Dioxide Catalytic Oxidation-Biological Aerated Filter Process

采用二氧化氯催化氧化法—BAF法深度处理造纸废水,实验结果表明:在二氧化氯加入量为150 mg/L,催化氧化时间为40 min时,可生化性BOD5/COD最高达到0.316;二氧化氯氧化后出水经曝气生物滤池深度处理后,BOD5低于20 mg/L,COD低于90 mg/L,TSS低于30 mg/L,处理后水质完全达到国家新的排放标准(GB3544—2008)。

Papermaking wastewater was treated by the chlorine dioxide catalytic oxidation-biological aerated filter process.When the chlorine dioxide dosage is 150 mg/L and the catalytic oxidation time is 40 min,the BOD5/COD of oxidation effluent is up to 0.316,the BOD5 of the final effluent is below 20 mg/ L,the COD is below 90 mg/L,and the TSS is below 30 mg/L.The quality of the treated wastewater can completely meet the new national discharge standards of GB3544-2008.